Improved gas-regulator



NiTEn STATES ATENT FFICE@ WILLIAM GROVER, OF HOLYOKE, MASSACHUSETTS.

vl lVI PROVED GAS- REGULATOR.

To @ZZ whom it may concern:

Be it known that I, WILLIAM GROVER, of Holyoke, in the county of Hampden and State of Massachusetts, have invented a new and useful Improvement in GasRegulators;

--and l do hereby declare that the following is a full, clear, and exact description of the same, reference being hadv to the accompanying drawings, forming part of this speciicatiomin whicht. Figure 1 is a central vertical section of the regulator. Fig. 2 is a plan of,l the same with the cover removed to expose the interior.

Similar letters of reference indicate corresponding parts in the two gures. A

'Io enable others skilled in the art to makeand use my invention, I will proceed to describe its construction and operation.

A is the shell of the regulator, composed of a single casting open at the top and having a horizontal partition, a, which separates the inlet-chamber B from the outletchamber C, such partition having an opening, b, which is surrounded within the outletchamber O by an annular basin, c, to contain mercury, and a channeL-d, being formed around the top of the said shell to form another mercury-basin.

e is the inlet-opening to the chamber B for the connection of the pipel for the introduc-` tion of the gas from the main, and f is the outlet-opening froml thechamber C for the connection of the outlet for vconducting the regulated aiiow of gas to the burners.

D is the oscillating siphonshaped pipe, which constitutes both the means of commu?. nication between the -chambers'B and C land the regulating-valve. One end, h, of`this pipe covers the opening b and is always immersed in the mercury in the surrounding basin c, and the other end, i, dips linto a basin, g, containing mercury, supported upon the partition a. rllie end h of this pipe is supported on two xed knife-edged bearings or lfulcrums, j, arranged within the basin c, one

on each side of the opening b, on which it is free to o scillate in s ucli manner as to' make the end t' dlp more or lessinto'mercury in the basin g. The mouth 'i is notched allround to permit the ilow of gas into-the chamber O, While it dips to some extent into thejbasin g.

E is the inverted cup, upon the interior of lwhich the pressure of the gas in the' chamber O acts vto lift the pipe D and raise the mouth This cup is arranged to oscillate upon twov p.in's,'m'm, whichattach it by one -end to the shell'A', and the edges of the said cup dip into the mercury in the basin d. The said cup has rigidly'atta'ched to it two arms, It, which bear against 'shoulders Z, provided on the pipe D 'near the end h,insucl1`inanner .that the weight of the said cup makes it act 'as a lever upon the Said pipe, and so tend to raise the mouth h, which, owing to the natural "tendency of the weight of the said pipe, tends to descend into the basin g,

' F isfa. movable cover tted t'o the top of the shell-A to cover the cup E and basin d and keep the mercury in the saidl cup protected from dust. v

The operation or" the regulator is as follows: When there is no gas entering the reguiator, the weight of the cup E, causing it to act asa lever upon the pipe D, raisesj the mouth 'i of the said pipe out of the mercury in the cup g; but when gas is admitted to the chamber B it passes through the pipe D into the chamber C, and thence t'hroughthe outlet f to the burners, and its pressure in the chamber O, acting-upon the interior ofthe cup E, tends to raise the said cup, and so to'draw the arms k away. from the shouldersZ on the oscillating pipe D and permit the said pipe to descend, and so contract the opening between its mouth i and the surface of the mercury inlthe basin g. According as the pressure of the gas in the chamber() is greater or less, owing to a greater or less pressure on the main or to the opening of a less or greater number ofburners, it raises the cup E 'more or less, and s'o permits the pipe D to descend more or less, and thereby, more or less, contracts the opening between the mouth t of the said pipe and 4the surface of the mercury in the .basin e, and so, more or less, reduces the'supply to the chamber C, as

may be required, thereby'equalizing the pressureupon the burners. The notches in the mouth i .ofthe pipe D permit the'escape of gas, while the lower edge of the mouthr' of the Apipe dips into the mercury, and so when lthe pressure of thegas in the regulator is very suddenly lincreased prevents the sudden closing ofthe said mouth, and also serves 'to' pre'- vent; any flickering 'being produced 'by the oscillation of the pipe D. It may be understood from the foregoing description that the mouth i 'of the pipe D eonstitutes a valve whose seat is the mercury in theveup g.

A ilexible diaphragm may be substituted for the invert-.ed cup E and mercury-basin d; but I prefer the Cup and basin; and a flexible pipeconnection may be substituted for the mercury-basin c; but; I' prefer the mercury.- basin.

By having the fuierumsjj arranged within the mercnrycnp h the free oscilabion of the sipnon D is always secured, as inhe tar and other impurities arising from the gas can never como in Contact with the fuierums.

WM. f GROVER.

YVibnesses:

W. B.` C. lPnnnsoris, RUFUS Mosman.` 

